The Incredible Theft By Agatha Christie : A Hercule Poirot Mystery

The fate of a nation rests on a lie and a spy. Can Poirot see through the swirl of outrageous deception, lust and arrogance? Would it be better if he didn't? So much for his quiet night in the country to attend a small dinner party with the First Minister of Armaments. Something of national security importance has been stolen and Poirot's on the spot.